https://github.com/torvalds/linux
Revision 6111da3432b10b2c56a21a5d8671aee46435326d authored by Linus Torvalds on 27 September 2014, 23:45:33 UTC, committed by Linus Torvalds on 27 September 2014, 23:45:33 UTC
Pull cgroup fixes from Tejun Heo:
"This is quite late but these need to be backported anyway.
This is the fix for a long-standing cpuset bug which existed from
2009. cpuset makes use of PF_SPREAD_{PAGE|SLAB} flags to modify the
task's memory allocation behavior according to the settings of the
cpuset it belongs to; unfortunately, when those flags have to be
changed, cpuset did so directly even whlie the target task is running,
which is obviously racy as task->flags may be modified by the task
itself at any time. This obscure bug manifested as corrupt
PF_USED_MATH flag leading to a weird crash.
The bug is fixed by moving the flag to task->atomic_flags. The first
two are prepatory ones to help defining atomic_flags accessors and the
third one is the actual fix"
* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags
sched: add macros to define bitops for task atomic flags
sched: fix confusing PFA_NO_NEW_PRIVS constant
Tip revision: 6111da3432b10b2c56a21a5d8671aee46435326d authored by Linus Torvalds on 27 September 2014, 23:45:33 UTC
Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Tip revision: 6111da3
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 1.7 KB |
| Makefile | -rw-r--r-- | 380 bytes |
| acl.c | -rw-r--r-- | 5.5 KB |
| acl.h | -rw-r--r-- | 1.4 KB |
| balloc.c | -rw-r--r-- | 44.5 KB |
| dir.c | -rw-r--r-- | 17.7 KB |
| ext2.h | -rw-r--r-- | 27.5 KB |
| file.c | -rw-r--r-- | 2.8 KB |
| ialloc.c | -rw-r--r-- | 18.2 KB |
| inode.c | -rw-r--r-- | 44.8 KB |
| ioctl.c | -rw-r--r-- | 4.4 KB |
| namei.c | -rw-r--r-- | 10.0 KB |
| super.c | -rw-r--r-- | 42.0 KB |
| symlink.c | -rw-r--r-- | 1.3 KB |
| xattr.c | -rw-r--r-- | 27.9 KB |
| xattr.h | -rw-r--r-- | 3.3 KB |
| xattr_security.c | -rw-r--r-- | 1.9 KB |
| xattr_trusted.c | -rw-r--r-- | 1.4 KB |
| xattr_user.c | -rw-r--r-- | 1.5 KB |
| xip.c | -rw-r--r-- | 2.0 KB |
| xip.h | -rw-r--r-- | 759 bytes |
Computing file changes ...
